/*
* xtc - The eXTensible Compiler
* Copyright (C) 2004 Robert Grimm
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
package xtc.parser;
/**
* The marker interface for internal grammar elements. Internal
* grammar elements cannot appear in the abstract syntax tree of a
* parsed grammar, but rather are added to the tree as part of the
* packrat parser generator's transformations. Note that any class
* implementing this interface must also be a {@link Element}.
*
* @author Robert Grimm
* @version $Revision: 1.5 $
*/
public interface InternalElement {
/* Empty marker interface. */
}